A famed sandstone arch in Utah's Arches National Park collapses and takes a woman atop it to her death, ensnaring archaeologist Chuck Bender and his family in lethal questions of environmental monkeywrenching and political intrigue. As more deaths follow, Chuck and his wife Janelle race to uncover the killer even as they become murder targets themselves.

SCOTT GRAHAM is the author of the acclaimed National Park Mystery series, featuring archaeologist Chuck Bender and Chuck's spouse, Janelle Ortega. In addition to the National Park Mystery series, Scott is the author of five nonfiction books, including Extreme Kids, winner of the National Outdoor Book Award. Scott is an avid outdoorsman who enjoys backpacking, river rafting, skiing, and mountaineering. He has made a living as a newspaper reporter, magazine editor, radio disk jockey, and coal-shoveling fireman on the steam-powered Durango-Silverton Narrow Gauge Railroad. He lives with his spouse, who is an emergency physician, in Durango, Colorado.